4100K Cool white gives a whiter light. The cooler (whiter) colors seem brighter and can be used where bright lighting is essential, i.e. workshop or food preparation counter. It also can be used when existing lighting is insufficient.

What does 4100K mean on a light bulb?

Color temperature designations of light bulbs can be confusing. Sometimes you’ll see subjective terms such as “warm white” or “cool white.” Other times, the quantitative Kelvin temperature number will be used: 2700K (warm white), 4100K (cool white).

What is 4100K in lumens?

The 4100K cool white bulb is dimmable and will replace a 60-watt equivalent incandescent bulb. It produces a similar light output (800 lumens) and uses 10 watts of electricity and less energy than a standard incandescent light bulb.